Prevalence of Borrelia burgdorferi and Borrelia miyamotoi in questing Ixodes ricinus ticks from four sites in the UK

Publication date: Available online 17 September 2017 Source:Ticks and Tick-borne Diseases Author(s): Scott J. Layzell, Daniel Bailey, Mick Peacey, Patricia A. Nuttall Borrelia miyamotoi is a spirochete bacterium related to Borrelia burgdorferi sensu lato, the cause of Lyme borreliosis, and vectored by ticks. In 2014, B. miyamotoi was identified in three questing Ixodes ricinus collected in the UK. We sought to confirm the presence of B. miyamotoi in the UK. Ticks were collected from four locations not previously investigated for B. miyamotoi or B. burgdorferi s.l. and of which two are considered as Lyme borreliosis “hotspots” based on hospital records of the disease. We independently confirm that B. miyamotoi is present in the UK and support the view that B. miyamotoi is likely to have a broad geographic distribution, at low levels. Our study also adds to the existing data on the distribution of B. burgdorferi s.l. in the UK and demonstrates that although the two “hotspots” had relatively high tick densities, they did not have the highest proportion of infected ticks.
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research

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The prevalence of tickborne diseases worldwide is increasing virtually unchecked due to the lack of effective control strategies. The transmission dynamics of tickborne pathogens are influenced by the tick microbiome, tick co-infection with other pathogens, and environmental features. Understanding this complex system could lead to new strategies for pathogen control, but will require large-scale, high-resolution data. Here, we introduce Project Acari, a citizen science-based project to assay, at single-tick resolution, species, pathogen infection status, microbiome profile, and environmental conditions of tens of thousand...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
Publication date: Available online 20 January 2020Source: Ticks and Tick-borne DiseasesAuthor(s): Tom G. Schwan, Sandra J. Raffel, James M. BattistiAbstractThe relapsing fever spirochete Borrelia hermsii and the Lyme disease spirochete Borrelia burgdorferi sensu stricto each produces an abundant, orthologous, outer membrane protein, Vtp and OspC, respectively, when transmitted by tick bite. Gene inactivation studies have shown that both proteins are essential for spirochete infectivity when transmitted by their respective tick vectors. Therefore, we transformed a vtp-minus mutant of B. hermsii with ospC from B. burgdorferi...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 15 January 2020Source: Ticks and Tick-borne DiseasesAuthor(s): Dana Zubriková, Maria Wittmann, Václav Hönig, Pavel Švec, Bronislava Víchová, Sandra Essbauer, Gerhard Dobler, Libor Grubhoffer, Kurt PfisterAbstractLyme borreliosis and tick-borne encephalitis (TBE) are the most common tick-borne diseases in Germany. We collected Ixodes ricinus ticks from 16 high-risk and four low-risk sites distributed in Lower Bavaria and Upper Palatinate based on the number of human TBE cases recorded at the Robert Koch Institute from 2001 to 2009. A total of 8805 qu...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
This study also revealed the presence of the close ecological and evolutionary relationships between two important vector ticks, Hyalomma marginatum and Hy. aegyptium and determined genetic variations (distinct phylogenetic divergences inside the main clades) in some pathogenic SFG rickettsiae that are found in these ticks. Additionally, the presence of two Babesia species described very recently in hares with unknown vectors, namely Babesia sp. tavsan1 and Babesia sp. tavsan2, were detected for the first time in ticks. Finally, two unnamed Hepatozoon spp. were detected in Haemaphysalis ticks and their phylogenetic positio...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 9 January 2020Source: Ticks and Tick-borne DiseasesAuthor(s): Vesta Matulaityte, Algimantas Paulauskas, Maksim Bratchikov, Jana RadzijevskajaAbstractIxodes lividus Koch, 1844 (Ixodida: Ixodidae) ticks are parasites specific to the sand martin (Riparia riparia). The distribution range of I. lividus covers Europe and Asia and they are found wherever sand martins nest. Borrelia burgdorferi sensu stricto, Borrelia garinii and Rickettsia vini have recently been detected in I. lividus ticks in Central Europe. The aim of this study was to investigate the presence of Rickettsia spp. (Rickettsiale...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
This study investigated Borrelia prevalence and species distribution in ticks removed from humans and sent as diagnostic material to the Institute for Parasitology, University of Veterinary Medicine Hannover, in 2013-2017. A probe-based real-time PCRwas carried out and Borrelia-positive samples were subjected to species determination by reverse line blot (RLB), including a B. miyamotoi-specific probe. The overall Borrelia-infection rate as determined by real-time PCR was 20.02% (510/2547, 95% CI: 18.48-21.63%), with annual prevalences ranging from 17.17% (90/524, 95% CI: 14.04-20.68%) in 2014 to 24.12% (96/398, 95% CI: 19....
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 20 December 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Roman McKay, Benoit Talbot, Andreea Statculescu, Alexander Stone, Manisha A. KulkarniAbstractRecent studies have highlighted the occurrence and distribution of Ixodes scapularis ticks infected with Borrelia burgdorferi sensu stricto (s.s.) around the city of Ottawa, Ontario, Canada, and the need for strategies to mitigate the risk of human exposure and infection. We conducted a field study from July to October 2018 to examine the effectiveness of ecotonal woodchip borders as an environmental control method to suppress the den...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Conclusions: In children, NB more frequently presented as meningitis, and in adults in the form of Bannwarth’s syndrome. CSF pleocytosis in children with NB was higher than in adults, while the protein concentration in children was lower. Outcomes in children and adults were favorable and did not differ after standard NB treatment.
Source: The Pediatric Infectious Disease Journal - Category: Infectious Diseases Tags: Original Studies Source Type: research
Publication date: Available online 14 December 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Eisen LarsAbstractUse of emerging technology allowing for identification of genetic material from pathogens and endosymbionts in ticks collected from humans, domestic animals, wildlife, or the environment has resulted in an avalanche of new data on tick-microorganism associations. This rapidly growing stream of new information is a tremendous resource but also presents challenges, including how detection of pathogen genetic material in ticks should best be interpreted. There is a tendency in the more recent published literatu...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
SUMMARY: Lyme disease is the most common tick-borne disease in Canada and the United States, caused by Borrelia burgdorferi, which affects multiple organ systems. Epidemiology, clinical presentation, and neuroimaging findings are reviewed.
Source: American Journal of Neuroradiology - Category: Radiology Authors: Tags: research-article Source Type: research
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